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PLZ HELP 20 POINTS!!! I will give Brainliest!!!
Solve the system of linear equations below.
y = -2x + 19
y = x + 7

A. x = 4, y = 11
B. x = -12, y = -5
C. x = -4, y = 3
D. x = 8, y = 3

Respuesta :

Answer:

A

Step-by-step explanation:

since both equations express y in terms of x we can equate the right sides

x + 7 = - 2x + 19 ( add 2x to both sides )

3x + 7 = 19 ( subtract 7 from both sides )

3x = 12 ( divide both sides by 3 )

x = 4

substitute x = 4 into either of the 2 equations for y

y = x + 7 ⇒ y = 4 + 7 = 11

solution is (4, 11 )

Answer:

A is the answer

Step-by-step explanation:


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